- Correspondence to Dr Kuan-Fu Liao, Department of Internal Medicine, Taichung Tzu Chi General Hospital, No 66, Sec. 1, Fongsing Road, Tanzi District, Taichung City 427, Taiwan;
- Received November 6, 2015
- Revised March 17, 2016
- Accepted April 21, 2016
- First published May 5, 2016.
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